package com.chen.naisimall.order.web;

import com.chen.common.exception.NoStockException;
import com.chen.naisimall.order.service.OrderService;
import com.chen.naisimall.order.vo.OrderConfirmVo;
import com.chen.naisimall.order.vo.OrderSubmitVo;
import com.chen.naisimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

/**
 * @author woita
 */
@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    /**
     * 去结算确认页
     * @param model
     * @param request
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();

        model.addAttribute("orderConfirmData",confirmVo);
        //展示订单确认的数据
        return "confirm";
    }

    /**
     * 下单功能
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){


        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            System.out.println("订单提交的数据==" + vo);
            //下单失败,回到订单确认页,重新确认订单信息
            if (responseVo.getCode() == 0){
                //下单成功来到支付选择页面
                model.addAttribute("submitOrderResp",responseVo);
                return "pay";
            }else {
                String msg = "下单失败:";
                switch (responseVo.getCode()){
                    case 1:msg +="订单信息过期,请刷新再次提交";break;
                    case 2:msg +="订单商品价格发生变化,请确认后再次提交";break;
                    case 3:msg +="库存锁定失败,商品库存不足";break;
                }
                redirectAttributes.addFlashAttribute("msg",msg);
                return "redirect:http://order.naisimall.com/toTrade";
            }
        }catch (Exception e){
            if (e instanceof NoStockException){
                String message = ((NoStockException) e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://order.naisimall.com/toTrade";
        }

    }
}
